Learn about SolarEdge Error Code 18xC, its meaning, causes, and solutions for arc faults.
Error Code 18xC indicates an arc fault detected in the solar wiring, which can pose safety risks. It is crucial to address this issue promptly to ensure system safety and efficiency.
To troubleshoot arc faults, inspect the wiring for damage or loose connections. Ensure all components are properly installed and consider using a multimeter to check for continuity.
The SolarEdge inverter employs advanced arc fault detection technology to monitor the electrical parameters of the solar array. When it identifies a potential arc fault, it triggers a fault code as a safety precaution. This can occur due to insulation resistance measurement (RISO) falling below acceptable levels, indicating a possible short circuit or ground fault. The inverter continuously checks for ground faults and will shut down to prevent fire hazards or equipment damage when it detects anomalies in current flow or voltage levels.
When the SolarEdge inverter detects an arc fault, the LED indicator may flash a specific pattern, typically a rapid blink followed by a pause. Additionally, the monitoring app will show an alert indicating 'Error Code 18xC' and may display a production drop or complete halt in energy generation from the array.
Always ensure that a licensed electrician or certified solar installer performs any troubleshooting or repairs on the solar system to adhere to safety protocols and local electrical codes.
To avoid future occurrences of the 18xC error, conduct regular visual inspections of the solar array and its components. Ensure that all connections are secure and free from corrosion. Implement routine insulation resistance testing to identify potential issues before they escalate. Additionally, maintain proper environmental management to prevent moisture ingress and other external factors that could compromise the integrity of the wiring.